Ferns: British & Foreign: The History, Organography, Classification, and Enumeration of the Species of Garden Ferns with a Treatise on Their Cultivation, Etc. Etc

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Hardwicke, 1866 - 412 Seiten
 

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Seite 223 - SMITH. A SMALL family, of which two species alone are in cultivation, the S. vulgare and the S. Krebsii — the former is our native example. Fronds simple, veins forked, venules free, the superior and inferior branch of each fascicle contiguous and parallel, being sporangiferous on their proximate sides, and constituting two linear confluent sori, each having a linear indusium, the free margins of which connive.
Seite 7 - Gardens from 1841-63, watched over it for more than 40 years. In his privately printed Records of Kew (pp. 322, 323) he gives the following particulars of its origin and development : — " In the year 1822 I found the collection of ferns at Kew extremely poor, especially as regards tropical species, very many of those introduced in previous years having been lost and very few new ones added. . . . The tender exotic species were more or less of them growing without any arrangement in different houses,...
Seite 289 - Aspleniwm and Scolopendrium, the sori are depauperated, in some instances having no vestige of an indusium ; but such is not the case with this plant. The fronds are perfect in every respect, and if Herbarium specimens had been received from some foreign country, no Pteridologist, on seeing the naked sori, would refer it to Asplenice.
Seite 322 - When its fronds decay, the pot should be covered with a piece of glass, and put in a dry place until the proper season arrives in spring, when the application of moisture will cause the latent spores to vegetate.
Seite 303 - ... for tropical or sub-tropical species, or in Wardian cases — is described at some length, and in a manner which will be decidedly useful to amateurs, now so numerous and so zealous. Here, however, we cannot refrain from quoting with approval a remark of the author's on the present fernmania : — " However laudable and agreeable fern-growing may be, yet it is to be regretted that it leads to the extinction of some of our rarest native species. Even the more common are becoming scarce in localities...
Seite 368 - Another point of some practical importance is, t;iat in general only a single plant bud is formed on each Prothallium, This may be supposed to be owing to the vital function of the Prothallium not being able to support more, in that respect analogous to only one ovulum being fertilized in ovaries of many flowering plants.
Seite 336 - Fine crops of fruit were produced under it, also the tropical plants in the Botanic Garden flourished without the aid of canvas or shade of any kind. Not many years ago, solitary squares of this glass might be seen in the roofs of the old hot-houses, which strongly contrasted with the modern clear glass. My experience with this glass led me to recommend green glass for the...
Seite 358 - ... preventive against frost, as also for maintaining a proper temperature for tropical species ; but unless the bottom of the case is constructed for that purpose, and arrangements made for this mode of heating, to be strictly and regularly attended to, it had better be dispensed with. Should the case be exposed to the direct rays of the sun during the summer, it must be shaded, and care taken that the temperature inside does not CULTIVATION. become too high; it should not exceed 70°. This will...
Seite 325 - ... if soft stone cannot be had, it is desirable to invert a pan or common deep pot, covering it with a layer of soil, as already explained, to which the plant will cling, and soon form a green hillock : junks of wood answer the purpose ; but in a moist, close, and warm atmosphere, fungi and...

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